Plaster-channel installation for screen guides



H. DIXSON Nov. l2, 1929.

PLASTER-CHANNEL INSTALLATION FOR SCREEN GUIDES Filed Jan. I6. 1928 `lllllll|l llllllll i Patented y Nov. '12; 1929 f HAnNYmxsom or rELLA, IOWA, AssIeNon 'ro nonsoaianN COMPANY, or PELLA,

l v IOWA rnAsTERfoHANNEL INSTALLATION Non scnnEN'eUInEs Q Application mea, January 1e, i928. serial No. 247,173.

The `object ofmy invention is to -pro-vide a plaster channel installation wherein screen guides may bev mounted for movement twards or from the plaster wall in which theohannel member is embedded.

More particularly, it is my Object to provide 4 a guide of tubular shape for the screen, the -guide beinginserted in the plaster channel member wherein the guide may move tolo wards or from the plaster channel member for either initial adjustment of the guide relative to the channel or forurther adjustment -v -in case'of expansion or contraction of the building in`which the channelmemb-ers are mounted or for any other reason which necessitates adjustment of the guide member relative to the Jchannel member and for enabling the guide member tobe moved entirely when` 2 0 `StilLa further object is to provide the guides with flat sides adapted to be engaged by the flangesof the-channel member whereby a fly-tight connection between the guides v `bend. .The foregoingy lconstructionI is the and channel members results. l l With Ithese and other objects in view m Q vinvention .consists -in the construction, ar rangement and combination 'of the various parts of my device, whereby' the objects contemplatedare attained, as .hereinafter more .fully set forth, pointed out in my claims and `illustrated in the accompanying drawings. Although the 'invention is susceptible of a variety of embodiments, it is unnecessary'to fully-describe and'illustrate more than 'one in order togive aull understanding ofthe invention both'from its structural and functional standpoits l Acoordingly,-Y I haveA illustrated a preferred and desirable emboJdiment of the invention inthe accompanying 4o drawings in which: i 'I y v Figure 4v1 is a side view of' a portion of a wall with a window opening formed .therein i, i #and my improved plaster channel installation v'membersv shown therein, parts being' broken 'away'a'nd shown in, section to better illustrate the construction. Y p vFigure 2 ,is'an enlarged sectlonalview taken .'on the line 2*-2of Figure 1.

Figu on the linelf--S offFigure 1. i

re 3 is 'asimilar sectional view taken fu l ed so that they may, beadjusted toward or Figure 4 is a sectional perspective view of the plaster channel member which is adapted to be embedded in the plastic material of the building. v

Figure Sis a perspective view of aportion of the guide track; and,

Figure 6 is a sectional perspective view showing the guidechalmel'member and screen in their relationship to the plaster wall in which the channel is embedded.

In the accompanying drawings I have used the reference character A to indicate generally a window opening formed in a wall 10.

The wall I10 is covered with plastic-material. y A recess 12yis formed the upper portion of the window opening A and in this recess a screen box 14 is mounted. The screen box 14 is adapted to conceal a window screen 16 when the screen is in rolled up position. For receiving the screen 16 aroller (not shown) is mounted within the box .14. Secured tothe lower edge of the screen 16 is a bar orbinder 18 formed of a'stitf material so that it will not ordinary roll screen and forms no part of my The lwindow opening A is usually provided i with a window fra-me 20 which may be of steel or wooden construction and a window 22 `is supported in this frame.

the edges of the screen upon the two sides of the window opening A.

shape as best illustrated in Figure 5 of the\ drawings.' The 'distance between the two` f guides B/which are placed Aon either side of It is desira- .j -ble to providemeans for mounting guides for "i These guides also receive \the ends of the? bar 18. For this purpose l provide guide4 or track members-B of substantially tubular the window opening A is adapted tobe set by means of the bar `18 after whichthey v'remain in comparatively -ixed position. Upon 'a variation inv distance-between the two sides 'of the window-opening A lwhich ima be caused lby contraction or expansion ol the buildingin which-the structure is mounted,

the guide' meinbersl?) are ada ted to be mountfrom each other which adjustment I accomplish automatically in the following described. manner.

Within the plastic material forming the wall I embed a channel shaped member C which I shall term a plastic channel member. The member C is formed of a single piece of material formed to provide a pair of side walls 24 and a back portion 26. The back 10 portion 26 is formed by out-turning the inner edges of the walls 24 as indicated at 28 and then reben'ding them so as to provide the portion 26. This construction causes the formation of out-turned flanges adapted to hold the member C Arelative to the plastic wall 10 when it is embedded therein. The channel members C are adapted ,to receive the guidev members B. l y

I will now describe the guide members 20 themselves in` detail. Each guide member comprises a back wall and a pair of sideiwalls 32. When the guide 4member B is in position in the channel member C the walls 32 engage the walls'24 of the channel mem- 25 ber. Extending from the free edges of the side walls 32 is a pairf of converging walls 34 terminating in parallel flanges 36. This construction provides anenlarged guide member with a slit edge formed in it for the screen,

'30 t'o travel in. l

'Ihe binder bar 18 is provided at each-end with a friction block 38 best shown in' Figure 3 of the drawings which snugly fits within 'the associated guide member. Each friction 35 block is substantially the same shape as the guide member B and is made of such size that it will frictionally engage in the track. The track B is formed with'the flanges 36 slightly closer together than the thickness kof Mirthe friction block at the point` where it passes between these ianges. In this manner the friction block is frictionally heldin any position it is moved to in the guide B.

After the friction block has passed a certain point in the guide the flanges 36 of the lguide will spring toward each other for narrowing the slit opening down to about the l thickness of the screen 16. To prevent the edges of the screen from pulling out of the Y spaced intervals.

Normally the staples 40 prevent'the side edges of the screen from pulling out of the guides but in case the screen is accidentally struck so'that it might be torn, the staples will first pull out between the flanges 36. For causing the screen to thereafter roll up into proper position in the box 14 the upper ends of the guide members B are cut at a slant as indicated at 42.v This allows the pulled out edges to pass over the cut away portion so that it will thread into the boX 14 and onto the roller therein. Then when the binderI bar 18 is again moved downwardly the edges of guide B staples 40 are placed in its edges at .Y

the screen will properly enter the guide members B.

The entire plaster channel member C is adapted to be embedded in the plastic material of the wall and forms a channel for receiving the guide member `B and providing a fly-tight joint. The sides 24 of the channel member C are curved slightly outwardly for allowing the guide member to be easily inserted and for forming a finished corner where the plastic material joins with the channel member.

When the track member B is mounted in the plaster channel member C it assumes the position shown in Figures 2, 3, and 6 of the drawings. The guides are thus mounted for adjustment towards or from each other, one such adjustment being illustrated in dotted lines in Figure 3. The parts are arranged so that when the guide members B assume a certain position du'e to the initial downward movement of thecbar 18 which serves to space them they will remain in suchposition unless something is done to positively readjust such position.

From the construction illustrated it will be obvious that the entire track may be completely withdrawn from the channel `member when it is desired to paint the interior.of the building so that after the building is painted the paint will not be smeared over the guide members and prevent their proper operation. If it is at any time desired to entirely remove the screen installation the guides can be removed from the channels and only the channel grooves will remain and they will not be unsightly. In this manner a neat way is provided for mounting the screen guide in the plaster withoutcausing an unsightly window frame when the installation is removed.

Some changes may be made in the construction and arrangement of the parts of my device without departing from the real spirit and purpose of my invention, and 1t is my intention to cover by my claims, any modified forms of structure or use of mechanical' equivalents, which may be reason- .ably included Within 'their scope.

I claim as my invention:

1. In `a rollscreen structure, a channel shaped receiving member having spaced side walls and a rear wall, means whereby said member is supported relative to a building wall, and a screen e'dge guide-element having spaced side walls connected at one end by a rear wall, said side walls being in contact withV the side walls of the channel shaped receiving member and the rear wall thereof arranged parallel with the rear wall of the receiving member. y

2. In a structure of the class described, a

.channel shaped receiving member adapted to be received within a plaster wall, said member having spaced side walls and a rear consol linember'having spaced side walls adapted-to be .embedded and `anchored in a plastle Wall and a'fscreen guidefor the edge of a rollp necting wall, a guide element adapted to be supported within said channel member; said guide element having a pair of Hat wall portions arranged parallel with the side walls of the receiving member and having a rear Wall connecting said. iat portions together arranged to lie substantially parallel 'to the rear wall of said receivin member and means member by the for securing 'said receivm rearvvall thereof to a buil g wall.

3. A guide for the side edge of a rollscreen comprisinga body portion having a slit openn ing along-one Side thereof and having spaced i :dat portions and a channel adapted to be e embedded in a wall, said channel having spaced flat-sides adapted toenga ethe spaced :dat portions 'of said guidefan Ameans' for anchoring saidv channel tothev wall for retaining it inposition.-

4f. In a rollscreen structure, a channel screen having'sp'aced fiat sides, sad sides being adapted to frictionally engage, the

inside of the channelv member against thesides thereof. 1

5.. A guide for the side edge of a rollscreen comprising an enlarged body portion havin 'a slit opening alongone side thereof an having spaced-fiat portions, and a channel member having spacedsidev Walls adapted toy be embedded in aplastic wall and to y receive said gnidewith the xlat sides of said sides thereof to prevent rotation'of the guide Y Des Moines, Iowa,

body portion adaplte'd to rictionally enga e the inside of the c annel member against t e Within said channel member., 4 y

January 7, 1928. HARRY D IXSON` 

